Control device



Aug. 18, 1925.

W.l H. BARLING CONTROL DEVICE /NVENToR WZ/"aafgg ATTORNEY '-Patented 1185" WALTER nenmive, OF nAYTeN, oa-ro.

n fdivfrnom DEVICE.

Dayton; jin the @Guilty-@ 'Montgemery and i One VA.Qhjecdn edi this.invention is thel ino? vision-0in control-device espelally ,adaptedsiton after the same fhas'fheen attained by jmelei-y removing' .thehandv-o-f the operatori' y :Agsecond object isdhe provision of flock-j"tingv device' `upon a control .mod which will minta'ingthe y.eentrot rod`locked in, its adu vh,' the iflocking deiviceepeiati11g-in the" salme lmanner; Whether .the levier ris' in'ts normal f positionil some positiontemete theie-V i l Anethei' objectisthe provision of exi# `movestheeXtens-ion to adjliist the inainleonurther .Obj'eetiiesides themlnnei `in which the cont-rofl lever* 17s su portedv Aso zts y edjiipona -Yshaftvwihiieh' is. in turn held by A @further isfthe'vpltvision 2L Ylimiting stopr for the motion @of k afzcon"r,1101' ,e lewerfwhieh isadapted' 'to' nfiom, about .atpluilfalifty 0f intersecting lanes', this'limiting y eitizen ofthefllnte tetes, freSding-at' yendfof which,asshown et S.; projecting t ,Y 'the -znsicteend ofrsleeve if The Shaifzt6 iis pmvidedrbetween its ends-with a bleek :9A n made'integralthere-With, the'bloek being Y provided witlgl a feentral 1 -101e, 1 0rfthlpugh 't wheh extends shaft 11,"the'vs'haft ll k,being new"pgsition,.it Vwill beiinpossible to ing-ff crease the Y speed ti eithervgironp'of motore" beyend a predetermined `V.Seife point.

Fig, l is e ventieal 'sectionrteken thiilgh step- Y. efeifling to 'chenrw-ing, mail@ @reims T t fixed fhealf'inglsl Aend 2 are :provided :uponany. suitable par-tief the L planefhnnie-Wei'k f;

edi-.n @airplane Y h the deificeis zt'o'be 1 Y for-the eontrel .of thesteeing devices `or ample, ,en tile-iight the wenn@ .group -1 Qflaplurality of groiips'rof f @ne ,gtoiip isioeated., f0.1:1V de of, theratiuplaalfle@indiI on :thevzle-f't Side 20=f the ,f Y

The rxed loeieni-:rigis mentonedisn pQi-t tttble leveren trelieabls orattaeheld; as showliet ;5., a

wires maybe iconnecteel.. f

a. shaft 165 @fue :end .of TWhileh has et4 vplo Q- tieninsideof thehollen' sleeve :3., the@ et?,

relywnotaitazble Within the 11i-.ole or hearing sind 4 altelhollew andimm aLl-Support @y Y l o'of tof] Y.

l0." Lt-,xvifll be seenthus iai" that the sleeves mounteeh, v Y Y Aloifnrteated Operating Casting' ,12 having isQpiio-Vided.:

and a similar bevel gear 17 is likewise attached to the sleeve 4. Athird bevel gear 16 is rigidly attached to the end of shaft 11. Bevelgear 18 meshes with both gears 16 and 17 as shown in Fig. 2.

The operating casting 12 is provided with an upwardly extendingcylindrical portion 19 which is rigidly attachedby means of a pin 2O orany other suitable means to a rod 21 fitting within thel part 19. Thisrod 21 forms the main part of a controlling lever which extendsvertically upwardly from the intersection of the shafts 11 and 6.

Mounted upon the shaft 21 so as to freely move up and down upon the sameis a sleeve 22 connected by pins or other suitable fastening devices 23to a friction member 24 having a general spherical shape and having aradius of curvature at the intersection of the axes of shafts 6 and 11.The friction member 24 is provided with a hub part 25 which attaches thefriction member to the sleeve 22. This hub part 24 is provided with aninner bore which has a sliding` fit upon the rod 21. The hub 24 is alsoprovided with a horizontal surface 25 forming a sort of a thrustmemberagainst which two springs 26 and 27 bear. The lower end of these springs26 and 27 finds a support upon a horizontal surface provided upon thebifurcated operating casting 12. The springs 26 and 27 in the positionshown in Fig. 1 are under compression and serve normally to exert anupward force against the clutch member or friction member 24 in regardsto the control lever 21. The springs 27 and 26 are preferably ofdifferent sizes as shown, the inner spring being formed of wire having asmaller cross sectional area.

A fixed friction member 28 of leather or other suitable frictionmaterial is formed with a surface 29 which has a radius of curvatureequal to the radius of curvature of the friction member 24. Thisfriction member 2S is in the form of a ring centrally located in regardto the normal position of the control lever 21. It is held in thisposition by any suitable means such as the brackets 36 which areattached to the under side of the fuselage framework 31, the latterbeing provided with a circular opening 32 through which the controllever 21 may project. Fixed upon the upper surface of the fuselageframework 31 is a plate 33 shown in detail in Fig. 3, this plate beingattached by means of screws 34 and 35 to the fuselage framework. Theoutside form of this plate 33 may have any suitable shape. A squareopening is form-ed in this plate 33, this opening being defined by thesides 36 and 37. The two sides 36 extend in two parallel planes whichare located 45 degrees away from both of the axes of shafts 11 and 6,for a purpose which will be more filly set forth.

Fixed within the upper part of the con trol rod 21 in any suitablemanner are two blocks 38 and 39 which form a socket 40 for the receptionof a ball 41 attached to or forming an integral part of the end of a rod42 which is in effect, an upward vertical extension of the main controlrod 21, the ball and socket'joint forming a flexible connection betweenthese two parts. A flanged member 43 is fixed upon the upper end of thesleeve 22, and this flange casting 43, is provided with an inner borewhich permits free movement of the same upon the main control rod 21.

Surrounding the vertical extension 42 of the control rod is a sleeve 44,the lower end of which is rigidly attached to a anged projection 45which bears upon the casting 43 at points removed from the vertical axisof the main control rod 21. The flanged projection 45 is provided withan inner bore 46 within which the adjacent part of the extension rod 42is adapted to freely slide. The upper end of the sleeve 44 is rigidlyattached to apart 47 which is provided with an inner bore 48 withinwhich the upper end of the extension rod 42 is adapted to freely slide.The extension rod 42 is therefore spaced from and guided freely withinthe sleeve 44. The upper end of the extension rod 42 is provided withscrew threads 49 which are adapted to be engaged by the correspondingthreads of a nut 50, the nut 50 being held in fixed position as regardsto a knob`51 having a general hemispherical shape which bears againstthe upper surface of the part 47. A hole 52 in the center of this knobpermits the free movement of the upper thread end of the extension rod42, but it will be seen that the nut 50 which is attached to the knob 51will be rotated when the knob is manually turned by the hand of theoperator so that the extension rod 42 will be lengthwise adjusted withinthe sleeve 44.

A pin 53 is attached to the sleeve 22 and extends through a slot 54extending vertically in the control lever 21. This serves as aneffective stop limiting device for the adjustment of the tension exertedby the springs upon the brake friction members.

The operation of the control device will now be more fully set forth.The hand control lever `which consists of the extension of the maincontrol rod 21, is adapted to be moved fore and aft in a longitudinalplane about the axis of the shaft 6, this movement serving to tilt theshaft 11 so as to raise the left hand end of shaft 11 upwardly when theupper end of the control lever is moved to the right from the positionshown in Fig. 1. This will have the effect, as more clearly shown byreferring to Fig. 2, of equally rotating the gears 16 and 17 so as tocause a correspondingly equal' movement VofgtheH sleeves andL 4; .Y Sucha movement may vbe utilized/ to adjustk the throttles of a group ofengineszupon the right-hand side` o'-tlie'siiip inthe vsaine man-f` neras'thef throttles-- onlthe lett Vside of the'. l 4Ship arey adjustedtf-That is," all ot theien;VV

gines may` begspeedediupor slowedydown ilialdgr'eesl f f The-'control''ilever'sY alsofad'apted: to .rotate laterallyaboutthe vaxis of theshaft 11, suoli if/movement. causing al .rotation of thel gearl'serv'ingto rotate thev gears 164V andfl? Yto 1 movement istransmitted,through the sleeves ff3fandi' 4y so; as yto 'ea-use,l for?v example,the motors {on one side off the shipto .bei speeded' nip; yvvliile'1-thethrottles of f the-:motors vonftlie opposite side'are being closed.. f Lj Sltwill ab obvious 'thatthe' A frictionI clutch"Y Ineniber'24f isalways urged upwardly. against Vi vthe fric-tionleather 28v sofas tomaintain the.. control lever? in the positionin which it is H left'after rthe' removalof .the handgoffthe operator. Wh'ena force exertedupon'VV the?7 upper end ofi-the sleeve 44 tending,-xfor'V instance',tofmove rvthe extension "42 in the Y direction 'shown in: the arrow in'lf-ig.` i,- iff V fthe braking forcebetweenthe1membersv24 and:y 28'V isvsriiallf:,thel vcontrol leverzZl -and 'y V301`jtheextension f 'rodi5.42 wille` remain in` alilgni men-t and; the eontrollever adjusted toits 'desiredtpositiong vwit'li'littlek or no'real-'m'ove- "ment ofthefriction? member24 awayv lfrom V'they riction.fleather.;-28 -Iffory 'any'reason 24andf28- should'floey increased, or if thev two j inemjo'ers.Ishoufldi tend" to: Vstick together', yop# erationlof'the: controlleverlwould befdihcult, thev springs.: '26 and 27 willlrbecoml f-f;presseclf .by the pressure" which willfbev eX- efrted (downwardly.upontheY Casting 43:- of. the l sleevew22'. 5 "This 'will resultr in aslight; Y downwardmovenient of the spherical fric- VV y tion-memberandreducethe:friction betwee'nthaty member'and the friction Vleathera5:Vv

g 28.1 to su'chfan extentjthatmotion will be per- "inkitted,jflihefriction 'between'fthef friction members 24 anclflwill,thusfbe5Vautomat- .'ffiailly maintained. 'ataj const ant'value,' WhileY ,50.5thef contro'llever is .being operated.. After :l y the.'ino-vementl ofthe I control/lever to its [desired position; the. `hand y' of f thezoperator) .removedparids' as soonasthe pressureV f Y against thenpper.`end'of' the; auxiliary: eX# 'jtltensionl( isf-removed, theispififngsrv'andHQT-lY dre@ thesleeve 22 andV the-'"{fri'ction frnembeiri' 2 pwardlythe extension f42and fthe erf2l rare@.iiiiniediately alignedf. Y `ff-1it -i's desired toA fad' he tension of??? Vthe'V 'spring` exertedVinc-Ina f ainingthe'i'jric I tio \f niember-f-Ztagainstthel frictionleatherf .f 28`sofastoL permit easier'frllorniore Ydi'iiicul'toperation. offthe control'le'ver', a rotation'of- -theiland knobJ 5l'aboutf'a' vertical? will. insure inf-'lowering or raising the sleeve 44inrel'a- Vcause a` corresponding changeffintlie force: f

ving,"leweigZl and Vconsequently before:acjor-f'YV respondingV releaseinthe braking eiiecti A The stop-liinitingl-memberv33, as before Vj fequal degrees' in oppositevdinections. This v1for thefoontrols of twomotors orsets oi- '33l is madersuiciently large so that vwhen;

flig. 15V' which corresponds to l-the, directie y troi lever.V Forthis:greasen,I the sides Sand`V 1 1- the Vfriet-ion betweenthese-'friction members;

Vof either` oii the inotorszbeyond predeterff Y j along said leve4v2supportfor fthe "sc meansimountingjsai anjanis, [a -lciirvedAVVfriction Vmember.mounte -on said lever7 means formovin-g"-saidvirictio-n to the entension lever This Y f y required lto be exerted againstthe upperz end i` oi the-extension lever 42bei`ore that in'eniloerU ismoved out of alignment with theoperati si statedhas'two setsA ofparallel sides Sti-and 37 which areglocated` in planes at 451y degreestothe a'Xesflo-f shaftsfand l-l.V This preciseV arrangement is desirableandi particularly advantageous whengthe'control device isz-used? lmotors'7 one on each side offtlie`y central axisgeo` of the airplane.The opening'in the memberv the control fever is moved', forVexainggile iI i* the; direction opposite; tothe arrow, shown opposite Ito the arrowshown inFig-.j3j-fto the limit of itsr movement, the.V throttlesgoffbothjgroups of motors]willfbezfentleiyf;v ope-ned.V Ii,at this time,-itisnfolesiredi'to'r cause-ar turning eiieet-nof? the. airplaneabout 90 avertical a'Xis,'l this may befdone by ole'creas-;V v

ing the; speed of the moto-ijs on onesidefjot the Center of' theairplane and simultaneously increasing thespeed Voifthe' motor or motorsp on4 the.oppositen side.Vv VV-It would however bei undesirableftoattempt toopen the-throttle `widerafter its adjustment correspondingtovl an extreme forward' inovem'ento the con Y' i gfot t'lieopening invthe. stop memberarel shapedas they'are sofas to cause adecreasef inthespeed oi.'lo'othfmotors at kthe'lfsaine, time/after the Y. speed of bothmotors "is 'i ohangedfin reverse senses for turning elieetf In. otherWords7V itis impossible toever-move.; 105Y Y either-fthe sli-aitllfontheshaft 6 tosuch an 'Y extent as would@` tend tol open :the throttlesfriction Ynienil'aerjy in the lwhe operatedfV .l '2. A 'control deviecomprising? 'lever leverVr on said supporti-"so asi 'toi move" abo tionmemberfjalong sfaid lever, ysaid'flast mentioned means including n(extension said lever in alignment therewith. t l 3'. controll devicecomprising aleverf 130;,

Ell

said spherical friction member,

adapted to move about a lurality of axes, a spherical friction membermounted on said lever, a fixed friction member co-acting therewith, andmeans for moving the spherical member away from the fixed frictionmember when the friction between these two members tends to preventmanual movement of the control device.

4. A control device comprising a lever adapted to m ve about a pluralityof axes, a spherical friction member mounted on said lever, a fixedfriction member co-actingV therewith, and means for automaticallyreducing the pressure between theseY friction members when the surfacesthereof tend to stick.

5. A control device comprising a lever adapted to move about a pluralityof axes, a spherical friction member mounted on said lever, a fixedfriction member co-acting therewith, and means for moving the sphericalmember away from rtlie fixed friction member when the friction betweenthese two members tends to prevent movement of the control device, saidlast mentioned means including an extension of said lever alignedtherewith.

6. A control device comprising a lever adapted to move about a pluralityof intersecting axes, a spherical friction member mounted on said lever,a fixed friction member coacting therewith, spring means normally urgingsaid members together and means for overcoming part of the spring`force, comprising an extension of said lever, the said extension beingheld in substantial alignment wirthsaid lever by said spring.

7. A control device comprisinga lever, a support for the same, meansmounting said lever on said support so as to move about a plurality ofaxes intersecting at a common point, a spherical friction member, asleeve on said lever for mounting said friction member movably on saidlever, a compression spring between the said friction member and thesaid common point, and a stationary friction member having a sphericallycurved face normally'in contact with said spherical friction member,both of said friction members having substantially equal radiiV ofcurvature and having their centers substantially at the point ofintersection of said axes. V

8. A control device comprising a lever, a support for the same, meansmounting said lever on said support so as to move about aY plurality ofaxes intersecting at-a common point, a spherical friction member, asleeve on said lever for mounting said fr iction Ymember inovably onsaid lever, a compres-V sion spring between the said friction member andthe said common point, and. a stationary friction member having' aspherically curved face normally in contact with both of said frictionmembers having substantially equal radii of curvature and having theircenters substantially at the point of intersection of said axes, andmechanism for slightly moving said friction members away from each otherwhen the lever is operated.

V9. A control device comprising a lever, a support for the same, meansmounting said lever on said support so as to move about a plurality ofaxes intersecting at aV common point, a spherical friction member, asleeve on said lever for mounting said friction member inovably on saidlever, a compression spring'between the said friction member and thesaid coimnon point, and a stationary friction member having aspherically curved face normally in contact with said spherical frictionmember, both of said friction members having substantially equal radiiof curvature and having their centers substantially at the point ofintersection of said axes, and mechanism for slightly moving saidfriction members away from each other when the lever is operated, saidmechanism comprising an extension on said lever, normally in alignmenttherewith and attached thereto by a fiexible connection, and aVprojection on said extension adapted to press against said sleeve whenthe lever and its extension are moved out of alignment.

l0. A control device comprising a control rod, a support for the same,means rotatably mounting said rod on said support, an operable lockingmember, an elongated hand-operated device normally in substantialalignment with said rod, a iiexible connection between said rod and saiddevice, a lateral projection on said device adjacent said connection,and means operably connected to said operable locking member andoperated by said lateral projection when the rod and device are movedout of alignment, Vand mea-ns normally maintaining said rod and saiddevice in alignment.

1l. A control device comprising a control rod, a support for the same, ameans rotatably mounting said rod on said support, an

.operable locking 'membeig an elongated hand-operated device normally insubstantial alignment with said rod, a flexible connection between saidrod and said device, a lateral projection on said device adjacent saidconnection, means operably connected to said operable locking member,and operated by said lateral projection when the rod Vand device aremoved out of alignment, means normally yieldingly maintaining said rodand said device in alignment, and means for adjusting the position ofsaid projection in relation to said device.

l2. A control lever having a main control rod and an upper hand-operatedeX- tension in alignment with the same, a ball and socket connectionbetween the rod and the extension, a spring for yieldingly mainico[taining said'extension andi rod in alignmen't, a knob on the upper yendofsaid eX- Y tension and meansV operatedvthereby toad- ,justl theeffective force ofthe spring.`

i i 13. A'control lever having afmain control f rod'and an upperhand-operated yextension i connected thereto by aball and socket joint,

-. a sleeve on saidextension provided with va projection, 'meansoperable to radjust the sleeve Yinl relation to Y thefeXtension. anda vsp-ring Vconnection `to normally press vvup-l 'iwardly on said,projectionfandi yieldingly if Vi'naintain the rodjand thel extension:in normal alignment. n' Y c -RlepA control device comprising a lever,

g "side Vof the said common'point, two controle4 ling 'parts,f and meansinterconnecting said leverand parts so vas to move the parts in Y f thesame'direction and to equal'degree When the lever' is moved inthefdirection `of one rofthe diagonals of they said square from a normalposition, and so kasjto move thejpartskr I equal amountsin"relativelyoppositedirecl l5. 'A control devicecomprising a lever,a

shaft jupongavhich'l said lever is. rigidly SmOimted, a secondshaftjextendingoat ninety Y tions when the levenr is moved from 'normalposition inthe"V direction ofthe other diag-4 degrees to the first saidshaft, and at 'ninety y .degrees to the lever, and supporting Vsaidfirst shaft, a plurality of members:rotatably supporting'vsai'd secondshaft, a fixed'bear-V "ying for each member, a .gear connected to:

each member', a gear intermeShingV there,v o

sect both jsaid shafts at an angle yof forty-v I 1 Y ',"With andconnected to said first shaft. 1 k

i; 516. A fcontroldevice comprising a lever, afshaft upon Whichsaid'lever is rigidly i I' mounted, a second shaft-'eXtending'-at ninetydegrees to the firstfsaidfshaft andat ninety degrees to the leverand'rotatably support# y 'king said first'shaft, a pluralityrof'membersrotatably supporting saidl second shaft, ar

fixed bearing for each member, a bevel gear connected to each memberyand a bevel gear/ :n i Vrinrpmeshingntherewith and connected to Sid*Shaffy* wherebyi said members l' other ofsaid shafts. Y 'y Y Y I "17LA; control device Vcomprising alever, a

shaft upon Which said lever Vis rigidly' be rotated inthe sameo'ropposite directions 'l l 'i by movement of said lever about one or the oo J v Y., k5557'1 mounted, av second shaft extending at ninety ,v

degrees to Nthefirst said Vshafty and at ninety degreesto the lever androtatably support intermeshing therewith and conne'eted'ptoi said firstshaft, Vwhereby, said members may sect both said shafts live degrees. Yn n 18.A control device comprising a lever, 1

mounted, a secondvshaft extending-at ninety degrees to the first sai-dshaftand at ninety c l i degrees to the lever and Yrotatably support- 60f Y A ing `saidifirstshaft, aY ypluralityrofY membersf -Y 'l rotatablyysupporting said. second'shaft,`a f

fired'beai'ing for each member,v a bevelgear" 'connected Yto eachmemben'fv a kbevelagear;

be rotated in the same or opposite. directions .Y

by movement .of-'said `lever abou tone orlthe c other of saidshafts,.;anda ystop member'for limiting the movement of* said lever,said stop member having tWo V,sets of vparallelf j sides lying inVvertical planes WhichA inter VVat an'angle of Yforty# vofjf 75 Y ashaft 'upon Whichsaid leveris rigidlytfj rotated -in the Vsainey oropposite directions by movement of said Vlever about one yor the VVotherofv saidVY shafts, a stopV member for limiting the movement of Saidlever, ,saidl Ystop Vmember having two sets of parallel sides,VV lyingin vertical planes Whichinter-Lf acting therewith', spring' means'normally means vfor automatically maintaining the lever is beingoperated.

said pressure at a constant valuevvhile ther vIn testimonyk whereof IaHiX my signature. l

WALTER n.'marinas.V

